Descripción
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The thermal annealing of amorphous tracks of nanometer-size diameter generated in lithium niobate (LiNbO3) by Bromine ions at 45 MeV, i.e., in the electronic stopping regime, has been investigated by RBS/C spectrometry in the temperature range from 250°C to 350°C. Relatively low fluences have been used (<1012 cm?2) to produce isolated tracks. However, the possible effect of track overlapping has been investigated by varying the fluence between 3×1011 cm?2 and 1012 cm?2. The annealing process follows a two-step kinetics. In a first stage (I) the track radius decreases linearly with the annealing time. It obeys an Arrhenius-type dependence on annealing temperature with activation energy around 1.5 eV. The second stage (II) operates after the track radius has decreased down to around 2.5 nm and shows a much lower radial velocity. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Applied Physics A |
ISSN
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0947-8396 |
Factor de impacto JCR
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0 |
Información de impacto
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Volumen
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104 |
DOI
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DOI 10.1007/s00339-011-6391-3 |
Número de revista
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Desde la página
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1143 |
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1152 |
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